TY  - BOOK
AU  - Bradley,W.F.
ED  - Conference on Clays and Clay Minerals
TI  - Clays and clays minerals: proceeding of the twelfth national conference on clays and clays minerals 
U1  - 553.6106173 
PY  - 1964///
CY  - Oxford
PB  - Pergaman Press
KW  - Clay minerals
KW  - Clay
N1  - Includes index
ER  -